<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>表格结构的跨行，跨列用法</title>
</head>
<body>
<table border="1" cellspacing="0" width="500px" height = 500px>
    <caption>4*4</caption>
    <thead>
    <th colspan="2">1-1</th>
    <th>1-2</th>
    <th>1-3</th>
    </thead>
    <tbody>
    <tr>
        <td>2-1</td>
        <td>2-2</td>
        <td>2-3</td>
        <td>2-4</td>
    </tr>
    <tr>
        <td rowspan="2">3-1</td>
        <td>3-2</td>
        <td>3-3</td>
        <td>3-4</td>
    </tr>
    <tr>
        <td>4-2</td>
        <td>4-3</td>
        <td>4-4</td>
    </tr>
    </tbody>
</table>

</body>
</html>